What should divers do to minimize the effects of cold water during a dive?

Wearing appropriate thermal protection is essential for minimizing the effects of cold water during a dive. The body loses heat rapidly in water, especially in colder temperatures, which can lead to hypothermia if not properly managed. Thermal protection, such as wetsuits or drysuits, provides insulation by trapping a layer of water against the skin, which is then warmed by body heat. This layer significantly slows down heat loss and helps maintain a stable core temperature throughout the dive.

In contrast, swimming vigorously might generate some warmth through increased muscle activity but is not a reliable method for maintaining body heat over time, as exertion can lead to fatigue. Limiting dive duration can help reduce exposure to cold, but it does not address the need for thermal protection during the dive. Likewise, consuming a warm drink before diving may provide temporary comfort but does not protect the body from cold water while submerged. Ultimately, appropriate thermal protection is the most effective strategy for ensuring divers remain warm and safe during cold-water dives.